Our People


Rod White

Distinguished Scientist

Temperature and Humidity

Areas of expertise

  • Johnson noise thermometry
  • Liquid-in-glass thermometry
  • Platinum resistance thermometry
  • Thermocouple thermometry
  • Radiation thermometry
  • Temperature control
  • Uncertainty in measurement


M.Sc., Physics, 1978

D.Sc, Physics, 2010


Rod has been working in thermometry since 1979, and has published more than 100 scientific papers spanning most areas of thermometry. He is also the co-author of the text book Traceable Temperatures and a major contributor to several of the BIPM guides on thermometry. Areas of specialist expertise include Johnson noise thermometry, platinum resistance thermometry and resistance bridge calibration, temperature scales and calibration equations, the realisation of the triple point of water, and measurement uncertainty.

Rod worked at NIST (USA) as a guest researcher in 2001 and 2007, and at NIM (China) in 2010, 2012 and 2016 assisting with the NIST/NIM collaboration to measurement the Boltzmann constant by Johnson noise thermometry. Rod won the NZ Royal Society Science and Technology medal in 1997 for contributions to Temperature Metrology, and the Cooper Medal in 1998 for the work developing the Resistance Bridge Calibrator, an instrument now manufactured in the UK by Isotech. In 2010, he was awarded a D.Sc by the University of Waikato for his contributions to temperature metrology.

Professional activities

  • 2001-2014: MSL representative on the CIPM Consultative Committee for Thermometry
  • Chairman CCT Task Group on Guides on Thermometry
  • Member CCT Working Group on Contact Thermometry
  • Member CCT Working Group on the Mise en Pratique for the Kelvin
  • Member CCT Working Group on Key Comparisons
  • New Zealand representative on the International Measurement Confederation
    (IMEKO) Technical Committee on Temperature and Thermal Measurements
  • Member of the Metrology Society of Australasia
  • Member Institute of Electrical and Electronic Engineers (IEEE)
  • Member NZ Association of Scientists
  • Member of the Royal Society of New Zealand


B D Hall and D R White, An Introduction to Measurement Uncertainty (MSL, Lower Hutt) 2017.

F Edler, Y G Kim, G Machin, J Pearce, and D R White Guide on Secondary Thermometry: Specialized Fixed Points above 0 °C (BIPM, Paris) 2017

J-FQu, S P Benz, K Coakley, H Rogalla,W L Tew, D R White, K-L Zhou and Z-Y Zhou, An improved electronic determination of the Boltzmann constant by Johnson noise thermometry, Metrologia, 54, 549-558, 2017

D R White and Qu J-F, Frequency response mismatch effects in Johnson noise thermometry, Metrologia, 55, 38-49, 2018

D R White, Propagation of Uncertainty and Comparison of interpolating schemes, Int. J. Thermophys,38:39, 2017

D R White, Interpolation Errors in Thermistor Calibration Equations, Int. J. Thermophys,38:59, 2017

D R White, In pursuit of a Fit-for-purpose Uncertainty guide, Metrologia53 S107–S124, 2016